Daniel Hagimont Pierre-Yves Chevalier André Freyssinet Sacha Krakowiak Serge Lacourte Jacques Mossière Xavier Rousset de Pina Persistent Shared Object Support in the Guide System: Evaluation & Related Work. 129-144 1994 OOPSLA db/conf/oopsla/oopsla94.html#HagimontCFKLMP94